Hello,
1. Could you please provide wp-admin access in Private Content?
2. We use woocommerce widget on our demo http://prntscr.com/ggszfb, but version of this plugin is very old on the demo. Functionality of this widget was changed by woocommerce in one of the latest version, so this doesn’t relate to our theme and can’t be changed from our side.
3. What exactly you want to edit? These are no special setting here for single product page breadcrumbs, but you may go to Theme Options > Header Settings > http://prntscr.com/ggt204 or use custom css to change style of breadcrumbs only on single product page.
4. Please read our documentation https://www.8theme.com/demo/docs/woopress/#!/demo_data_installation
Regards